/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 07:43:49,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:43:49,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:43:49,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 07:43:49,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 07:43:49,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 07:43:49,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 07:43:49,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 07:43:49,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 07:43:49,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 07:43:49,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 07:43:49,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 07:43:49,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:43:49,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:43:49,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:43:49,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:43:49,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:43:49,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:43:49,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:43:49,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:43:49,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:43:49,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:43:49,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:43:49,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:43:49,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 07:43:49,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 07:43:49,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 07:43:49,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 07:43:49,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 07:43:49,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 07:43:49,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 07:43:49,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 07:43:49,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 07:43:49,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 07:43:49,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 07:43:49,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 07:43:49,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 07:43:49,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 07:43:49,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:43:49,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:43:49,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:43:49,622 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 07:43:49,639 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:43:49,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:43:49,644 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:43:49,645 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:43:49,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:43:49,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:43:49,646 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:43:49,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:43:49,646 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:43:49,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:43:49,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:43:49,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:43:49,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:43:49,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:43:49,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:43:49,647 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:43:49,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:43:49,648 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:43:49,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:43:49,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:43:49,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:43:49,648 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:43:49,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:43:49,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:43:49,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:43:49,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:43:49,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:43:49,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:43:49,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:43:49,649 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:43:49,649 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:43:49,650 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:43:49,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:43:49,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:43:49,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:43:49,859 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:43:49,860 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:43:49,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2023-01-28 07:43:50,943 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:43:51,230 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:43:51,230 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2023-01-28 07:43:51,252 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d343da19/ef323b81d9234bc497aeaa83acd431cd/FLAG492ed10f5 [2023-01-28 07:43:51,265 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d343da19/ef323b81d9234bc497aeaa83acd431cd [2023-01-28 07:43:51,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:43:51,270 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:43:51,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:43:51,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:43:51,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:43:51,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:43:51" (1/1) ... [2023-01-28 07:43:51,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48bb943e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:51, skipping insertion in model container [2023-01-28 07:43:51,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:43:51" (1/1) ... [2023-01-28 07:43:51,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:43:51,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:43:51,449 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2023-01-28 07:43:51,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:43:51,730 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:43:51,737 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2023-01-28 07:43:51,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:43:51,858 WARN L667 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:43:51,863 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:43:51,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:51 WrapperNode [2023-01-28 07:43:51,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:43:51,864 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:43:51,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:43:51,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:43:51,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:51" (1/1) ... [2023-01-28 07:43:51,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:51" (1/1) ... [2023-01-28 07:43:51,909 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2023-01-28 07:43:51,909 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:43:51,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:43:51,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:43:51,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:43:51,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:51" (1/1) ... [2023-01-28 07:43:51,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:51" (1/1) ... [2023-01-28 07:43:51,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:51" (1/1) ... [2023-01-28 07:43:51,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:51" (1/1) ... [2023-01-28 07:43:51,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:51" (1/1) ... [2023-01-28 07:43:51,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:51" (1/1) ... [2023-01-28 07:43:51,934 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:51" (1/1) ... [2023-01-28 07:43:51,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:51" (1/1) ... [2023-01-28 07:43:51,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:43:51,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:43:51,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:43:51,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:43:51,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:51" (1/1) ... [2023-01-28 07:43:51,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:43:51,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:43:51,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-28 07:43:51,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-28 07:43:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-01-28 07:43:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2023-01-28 07:43:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2023-01-28 07:43:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2023-01-28 07:43:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2023-01-28 07:43:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:43:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:43:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 07:43:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:43:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 07:43:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:43:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:43:52,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:43:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:43:52,002 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 07:43:52,292 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:43:52,294 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:43:52,403 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:43:52,409 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:43:52,409 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 07:43:52,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:43:52 BoogieIcfgContainer [2023-01-28 07:43:52,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:43:52,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:43:52,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:43:52,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:43:52,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:43:51" (1/3) ... [2023-01-28 07:43:52,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f73def0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:43:52, skipping insertion in model container [2023-01-28 07:43:52,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:51" (2/3) ... [2023-01-28 07:43:52,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f73def0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:43:52, skipping insertion in model container [2023-01-28 07:43:52,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:43:52" (3/3) ... [2023-01-28 07:43:52,417 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2023-01-28 07:43:52,430 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:43:52,431 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 07:43:52,431 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:43:52,473 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-28 07:43:52,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 88 transitions, 192 flow [2023-01-28 07:43:52,540 INFO L130 PetriNetUnfolder]: 1/86 cut-off events. [2023-01-28 07:43:52,540 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 07:43:52,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 86 events. 1/86 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2023-01-28 07:43:52,544 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 88 transitions, 192 flow [2023-01-28 07:43:52,547 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 70 transitions, 149 flow [2023-01-28 07:43:52,549 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:43:52,557 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 70 transitions, 149 flow [2023-01-28 07:43:52,559 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 70 transitions, 149 flow [2023-01-28 07:43:52,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 70 transitions, 149 flow [2023-01-28 07:43:52,577 INFO L130 PetriNetUnfolder]: 0/70 cut-off events. [2023-01-28 07:43:52,577 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:43:52,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 70 events. 0/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-01-28 07:43:52,578 INFO L119 LiptonReduction]: Number of co-enabled transitions 552 [2023-01-28 07:43:55,323 INFO L134 LiptonReduction]: Checked pairs total: 1004 [2023-01-28 07:43:55,325 INFO L136 LiptonReduction]: Total number of compositions: 55 [2023-01-28 07:43:55,337 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:43:55,341 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6843fe78, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:43:55,342 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-28 07:43:55,345 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2023-01-28 07:43:55,345 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:43:55,345 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:43:55,345 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-28 07:43:55,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 07:43:55,350 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:43:55,350 INFO L85 PathProgramCache]: Analyzing trace with hash 112016611, now seen corresponding path program 1 times [2023-01-28 07:43:55,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:43:55,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341643715] [2023-01-28 07:43:55,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:43:55,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:43:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:43:55,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:43:55,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:43:55,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341643715] [2023-01-28 07:43:55,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341643715] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:43:55,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:43:55,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 07:43:55,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299420447] [2023-01-28 07:43:55,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:43:55,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:43:55,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:43:55,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:43:55,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:43:55,843 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 143 [2023-01-28 07:43:55,845 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:43:55,845 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:43:55,845 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 143 [2023-01-28 07:43:55,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:43:55,917 INFO L130 PetriNetUnfolder]: 39/96 cut-off events. [2023-01-28 07:43:55,918 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 07:43:55,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 96 events. 39/96 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 274 event pairs, 25 based on Foata normal form. 10/106 useless extension candidates. Maximal degree in co-relation 178. Up to 58 conditions per place. [2023-01-28 07:43:55,921 INFO L137 encePairwiseOnDemand]: 139/143 looper letters, 15 selfloop transitions, 3 changer transitions 0/19 dead transitions. [2023-01-28 07:43:55,921 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 86 flow [2023-01-28 07:43:55,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:43:55,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:43:55,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2023-01-28 07:43:55,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5827505827505828 [2023-01-28 07:43:55,932 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 250 transitions. [2023-01-28 07:43:55,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 250 transitions. [2023-01-28 07:43:55,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:43:55,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 250 transitions. [2023-01-28 07:43:55,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:43:55,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:43:55,941 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:43:55,942 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 39 flow. Second operand 3 states and 250 transitions. [2023-01-28 07:43:55,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 86 flow [2023-01-28 07:43:55,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 19 transitions, 80 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-28 07:43:55,945 INFO L231 Difference]: Finished difference. Result has 22 places, 15 transitions, 45 flow [2023-01-28 07:43:55,947 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=45, PETRI_PLACES=22, PETRI_TRANSITIONS=15} [2023-01-28 07:43:55,949 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2023-01-28 07:43:55,949 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 15 transitions, 45 flow [2023-01-28 07:43:55,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:43:55,950 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:43:55,950 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:43:55,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:43:55,950 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 07:43:55,951 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:43:55,951 INFO L85 PathProgramCache]: Analyzing trace with hash -339533945, now seen corresponding path program 1 times [2023-01-28 07:43:55,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:43:55,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623889962] [2023-01-28 07:43:55,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:43:55,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:43:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:43:56,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:43:56,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:43:56,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623889962] [2023-01-28 07:43:56,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623889962] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:43:56,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:43:56,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:43:56,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34982403] [2023-01-28 07:43:56,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:43:56,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:43:56,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:43:56,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:43:56,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:43:56,100 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 143 [2023-01-28 07:43:56,101 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:43:56,101 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:43:56,101 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 143 [2023-01-28 07:43:56,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:43:56,154 INFO L130 PetriNetUnfolder]: 24/65 cut-off events. [2023-01-28 07:43:56,154 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-01-28 07:43:56,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 65 events. 24/65 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 157 event pairs, 6 based on Foata normal form. 14/79 useless extension candidates. Maximal degree in co-relation 54. Up to 44 conditions per place. [2023-01-28 07:43:56,156 INFO L137 encePairwiseOnDemand]: 138/143 looper letters, 10 selfloop transitions, 3 changer transitions 7/20 dead transitions. [2023-01-28 07:43:56,156 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 20 transitions, 98 flow [2023-01-28 07:43:56,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:43:56,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:43:56,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 233 transitions. [2023-01-28 07:43:56,161 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5431235431235432 [2023-01-28 07:43:56,161 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 233 transitions. [2023-01-28 07:43:56,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 233 transitions. [2023-01-28 07:43:56,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:43:56,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 233 transitions. [2023-01-28 07:43:56,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:43:56,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:43:56,167 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:43:56,167 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 45 flow. Second operand 3 states and 233 transitions. [2023-01-28 07:43:56,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 20 transitions, 98 flow [2023-01-28 07:43:56,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 20 transitions, 92 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 07:43:56,168 INFO L231 Difference]: Finished difference. Result has 22 places, 10 transitions, 33 flow [2023-01-28 07:43:56,168 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=33, PETRI_PLACES=22, PETRI_TRANSITIONS=10} [2023-01-28 07:43:56,169 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2023-01-28 07:43:56,169 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 10 transitions, 33 flow [2023-01-28 07:43:56,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:43:56,170 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:43:56,170 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:43:56,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 07:43:56,170 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 07:43:56,171 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:43:56,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1162010656, now seen corresponding path program 1 times [2023-01-28 07:43:56,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:43:56,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717312058] [2023-01-28 07:43:56,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:43:56,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:43:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 07:43:56,204 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 07:43:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 07:43:56,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 07:43:56,248 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 07:43:56,249 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-01-28 07:43:56,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-01-28 07:43:56,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-01-28 07:43:56,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-01-28 07:43:56,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 07:43:56,251 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-01-28 07:43:56,256 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 07:43:56,256 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 07:43:56,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 07:43:56 BasicIcfg [2023-01-28 07:43:56,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 07:43:56,278 INFO L158 Benchmark]: Toolchain (without parser) took 5007.76ms. Allocated memory is still 377.5MB. Free memory was 323.5MB in the beginning and 283.6MB in the end (delta: 39.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.0GB. [2023-01-28 07:43:56,278 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 255.9MB. Free memory is still 214.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:43:56,279 INFO L158 Benchmark]: CACSL2BoogieTranslator took 591.60ms. Allocated memory is still 377.5MB. Free memory was 323.2MB in the beginning and 334.8MB in the end (delta: -11.6MB). Peak memory consumption was 31.6MB. Max. memory is 16.0GB. [2023-01-28 07:43:56,279 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.48ms. Allocated memory is still 377.5MB. Free memory was 334.8MB in the beginning and 332.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-01-28 07:43:56,279 INFO L158 Benchmark]: Boogie Preprocessor took 34.04ms. Allocated memory is still 377.5MB. Free memory was 332.0MB in the beginning and 329.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 07:43:56,280 INFO L158 Benchmark]: RCFGBuilder took 466.50ms. Allocated memory is still 377.5MB. Free memory was 329.9MB in the beginning and 310.4MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-28 07:43:56,280 INFO L158 Benchmark]: TraceAbstraction took 3864.77ms. Allocated memory is still 377.5MB. Free memory was 309.7MB in the beginning and 283.6MB in the end (delta: 26.1MB). Peak memory consumption was 27.1MB. Max. memory is 16.0GB. [2023-01-28 07:43:56,282 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 255.9MB. Free memory is still 214.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 591.60ms. Allocated memory is still 377.5MB. Free memory was 323.2MB in the beginning and 334.8MB in the end (delta: -11.6MB). Peak memory consumption was 31.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 45.48ms. Allocated memory is still 377.5MB. Free memory was 334.8MB in the beginning and 332.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 34.04ms. Allocated memory is still 377.5MB. Free memory was 332.0MB in the beginning and 329.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 466.50ms. Allocated memory is still 377.5MB. Free memory was 329.9MB in the beginning and 310.4MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 3864.77ms. Allocated memory is still 377.5MB. Free memory was 309.7MB in the beginning and 283.6MB in the end (delta: 26.1MB). Peak memory consumption was 27.1MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 77 PlacesBefore, 22 PlacesAfterwards, 70 TransitionsBefore, 15 TransitionsAfterwards, 552 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 55 TotalNumberOfCompositions, 1004 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 650, independent: 568, independent conditional: 0, independent unconditional: 568, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 305, independent: 286, independent conditional: 0, independent unconditional: 286, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 650, independent: 282, independent conditional: 0, independent unconditional: 282, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 305, unknown conditional: 0, unknown unconditional: 305] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1351] 0 int g; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1152, argc=1152, argv={1150:1151}, argv={1150:1151}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=-1, ptr={0:0}, t1={6:0}, t2={5:0}] [L1356] 1 g = 1 VAL [cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1152, argc=1152, argv={1150:1151}, argv={1150:1151}, cond={4:0}, g=1, mut={3:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=0, ptr={0:0}, ptr={0:0}, t1={6:0}, t2={5:0}] [L1365] CALL 2 __VERIFIER_assert(g == 0) [L19] COND TRUE 2 !(cond) [L19] 2 reach_error() VAL [\old(cond)=0, cond=0, cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] - UnprovableResult [Line: 1375]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1377]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 118 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 0 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-01-28 07:43:56,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...